para·​thi·​on | \ ˌper-ə-ˈthī-ən How to pronounce parathion (audio) , -ˌän, ˌpa-rə-\

Definition of parathion

: an extremely toxic insecticide C10H14NO5PS

Examples of parathion in a Sentence

Recent Examples on the Web

The pesticides found in the highest amounts included chlorpyrifos, methyl parathion and DDT. Wired Staff, WIRED, "Poison Incorporated," 12 May 2004

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'parathion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of parathion

1947, in the meaning defined above

History and Etymology for parathion

para- + thiophosphate + -on entry 1

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The first known use of parathion was in 1947

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para·​thi·​on | \ ˌpar-ə-ˈthī-ən, -ˌän How to pronounce parathion (audio) \

Medical Definition of parathion

: an extremely toxic thiophosphate insecticide C10H14NO5PS

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